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Classical Physics

- Principles developed before the rise of relativity and quantum mechanics. Mechanics, Electrodynamics, Thermodynamics, Optics...
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Jan16-12 Greg Bernhardt
Before posting anything, please review the Physics Forums Global Guidelines. Again, for some odd reason, people...
Apr22-11 05:26 AM
ZapperZ
1 45,743
Really can't figure this out by dividing x and y. The only way i can do it is with equations that use quadratics and I...
Oct2-11 12:01 AM
mitch_1211
8 2,219
why is rainbow always an arc?
Oct1-11 11:49 PM
DaveC426913
15 2,425
When I was a kid listening to a transistor radio under my pillow late at night I used to wonder whether turning the...
Oct1-11 06:24 PM
vk6kro
2 967
This will probably be a very basic question, but is the effect that gravity has on light, similar to the faraday...
Oct1-11 05:48 PM
mangaroosh
0 635
Hello everyone! After having being asked to help prepare a simulation(using computer programming), for the...
Oct1-11 11:49 AM
danielakkerma
11 1,565
Hi, I've tried to figure this out but I just can't! Please help me understand how to work it out??? A ballistic...
Oct1-11 01:40 AM
mitch_1211
3 2,044
If I draw a displacement-distance graph and a displacement-time for two wave forms, will both graphs look the same?...
Oct1-11 01:17 AM
Philip Wood
2 880
How close is this assumption to reality. Take for example a parallel plate capacitor with charge Q and -Q. Connect...
Oct1-11 12:55 AM
mitch_1211
1 899
I am totally lost about the idea of electric potential and work. sometimes the book defines work as negative and...
Sep30-11 11:12 PM
rcgldr
1 750
Because of the kinetic energy and frames of reference thread: http://www.physicsforums.com/showthread.php?t=534883...
Sep30-11 09:01 PM
rcgldr
0 918
hi, if i have a cylindrical rod of copper and i heat is at one end face while the other surface areas are open to...
Sep30-11 07:06 PM
gsal
2 4,707
Energy density of supercap is equal to square of it`s voltage. Is it possible to join together advantages of...
Sep30-11 01:07 PM
Stanley514
8 4,279
There is a tricep machine which is basically a pulley, with some rope connected to a stack of weights and a bar for...
Sep30-11 12:47 PM
chrisbaird
6 1,686
From what I can glean, since kinetic energy = 1/2 mv^2, it follows that a doubling of velocity requires a quadrupling...
Sep30-11 10:51 AM
cepheid
21 3,646
Hello! My name is Edward Solomon and I have found a very particular concept in classical physics to be more...
Sep30-11 04:54 AM
harrylin
52 7,179
Hey. Suppose a mass is attached to two springs, one on each side, and they have different values for k. If you...
Sep29-11 05:36 PM
darrenhb
4 2,317
This problem just occurred to me while I was taking photos indoors: Light sources powered by mains fluctuate in...
Sep29-11 04:49 PM
pantaz
5 5,278
I was wondering whether an induction hob cooker would work in reverse if a hot pan is placed on the coil - so would...
Sep29-11 03:24 PM
matt6770
2 1,245
I'm studying for the GREs, and I ran across this problem: Object located at x=0 Lens 1 located at x=40cm Lens 2...
Sep29-11 02:59 PM
FatCat0
2 975
Hi All I recently purchased a 1000w heating element for coffee cups, http://www.ebay.com.au/itm/110668421004...
Sep29-11 01:37 PM
thydzik
2 2,201
If you had 2 identical stars, one was a very hot star, but the other was cooler. Since mass is relative to velocity,...
Sep29-11 12:43 PM
Vanadium 50
13 2,582
The theory seems simple. Light strikes the film in a camera, or a CCD and the different regions of intensity are...
Sep29-11 12:05 PM
galtsgulchb
4 971
how potential energy of electric dipole perpendicular to electric field is zero in this situation the torque is...
Sep29-11 08:45 AM
Sumedh
6 3,091
The other day, we were discussing cars going through turns and the max speed they could do without slipping. My...
Sep29-11 05:14 AM
Philip Wood
4 1,683
How can you figure out the coefficient of static friction. I'm having a hard time understanding it.
Sep28-11 09:06 PM
Drakkith
3 1,116
I came across this Wikipedia article about Reactive Centrifugal Force. It seems to be saying that this is not the...
Sep28-11 12:35 PM
D H
403 35,260
My teacher in mechanics says that when we have a force pushing an object (moving at constant velocity) forward we also...
Sep28-11 10:39 AM
Naty1
2 2,015
Okay, so I was reading about how an air conditioner works. I was scrolling through the paragraphs until the sentence...
Sep28-11 09:46 AM
magnetoman88
0 841
Please look this configuration: http://i54.tinypic.com/2dceljk.png The image explains itself. It's a block an a...
Sep28-11 07:29 AM
D H
3 1,288
drops are falling vertically in a steady rain. In order to got through the rain from one place to another in such a...
Sep27-11 11:07 PM
marcusl
5 1,093
In a post I made in the materials engineering sub forum someone mentioned the field extends only a few atomic spacings...
Sep27-11 06:30 PM
lostminty
0 1,055
hello can someone suggest a simple fiber optic pressure/temperature sensor that can be constructed ...with...
Sep27-11 05:14 PM
Bobbywhy
1 877
Well, I understand q = mc∆T, along with q = mHv and q = mHf What I don't understand is this graph:...
Sep27-11 02:31 PM
Philip Wood
3 6,139
U=q+w U is the total kinetic and potential energy of the system. H=U+PV Enthalpy is the internal energy of...
Sep27-11 02:24 PM
Zeppos10
11 7,953
Hi, I've just started a degree in Mechanical Engineering after a HNC and im having trouble with the Dynamics...
Sep27-11 01:33 PM
Jowin86
0 719
Sorry to start yet another thread on the basics of magnetism, but I'm missing something... Glancing through an...
Sep27-11 12:43 PM
JDoolin
6 2,742
Hi there, I should probably know this (attempting to do a PhD in physics!!) but is there a way to differentiate...
Sep27-11 10:19 AM
nasu
2 1,222
Hi, everyone. I would to identify colors (fur colors, in this case, but I suppose that's not important) with...
Sep27-11 06:02 AM
Claud Butler
11 4,456
Hello, I've been reviewing some of my old mechanics stuff recently and I've finally come across rotating objects,...
Sep27-11 05:30 AM
Philip Wood
12 4,470
Today I was reflecting about the statement that increasing the distance between two large charged plates increases...
Sep27-11 01:39 AM
fizzle
2 1,435

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